From Longman Business Dictionaryfloor limitˈfloor ˌlimitFINANCE1the greatest amount of money that can be borrowed or taken out of a bank account at any one timeA charge is made for all withdrawals above a mutually agreed floor limit.2American English the greatest amount of money that someone can charge on their credit card at a particular type of store before the store needs to obtain approval from the credit card company → limit